Katy is a distinctive girls' name in United States, ranking #988 in 2004 with 240 recorded births. This places Katy in the top 5% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1997 with 279 births ranking #758. Since 1996, the popularity has decreased by 12.4%. In 2004, approximately 1 in every 7,651 girls born was named Katy. FALLING Recent data shows the name is currently falling.